KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q105214: Windows NT 3.1 to HP LM/X 1.4 Long Filename Problems

Article: Q105214
Product(s): Microsoft Windows NT
Version(s): 
Operating System(s): 
Keyword(s): kbhw kbHardware
Last Modified: 08-AUG-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Windows NT Server version 3.1 
- Microsoft Windows NT Workstation version 3.1 
- Microsoft Windows NT Advanced Server 
-------------------------------------------------------------------------------


SYMPTOMS
========

Microsoft Windows NT 3.1 systems cannot see any files in a directory on a
Hewlett-Packard (HP) LM/X 1.4 server if any file in the directory contains a
period (or "dot") followed by more than seven characters. If you use the "dir"
command to check the contents of the directory, you will receive the following
message:

  File Not Found.

CAUSE
=====

HP LM/X 1.4 systems negotiate to Server Message Block (SMB) Specification Ext
2.0 (LAN Manager 1.x), which doesn't support long filenames. When speaking this
down-level protocol, Windows NT 3.1 does not set bit 4 of Byte 9 of its SMBs.
This bit is defined as follows:

  flags (smb_flg) bit 4:

  "When on, all paths sent to the server by the consumer are already in
  the canonicalized format used by OS/2. This means that file/directory
  names are in upper case, are valid characters and backslashes are used
  as separators."

STATUS
======

A fixed, untested version of the RDR.SYS driver is available from Microsoft
Product Support Services.

Additional query words:

======================================================================
Keywords          : kbhw kbHardware 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW310 kbWinNTSsearch kbWinNTS310 kbWinNTAdvSerSearch kbWinNTS310search kbWinNT310Search kbWinNTW310Search
Version           : :

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1986-2002.